The World Association for the Development of Philately (WADP) and the Universal Postal Union (UPU) jointly conceived and developed the WADP Numbering System - WNS, which was launched on 1 January 2002.

LK001.06

Country / Post Sri Lanka
Date of Issue 4 January 2006
Primary theme Fauna (Mammals)
Subject National Parks of Sri Lanka - Wilpattu National Park - Barking Deer
Width 60.0 mm
Height 25.0 mm
Denomination 5.00 LKR
Number in set 7 (show set)
Layout/Format sheet of 50, miniature sheet of 1
Perforations 12 by 13.5
Stamp issuing authority Department of Posts
Printer Department of Government Printing, Sri Lanka